From 629af1c4f0ed47a9d0ed4278772c54bf169006a3 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=D0=A1=D0=B5=D1=80=D0=B3=D0=B5=D0=B9=20=D0=91=D0=B0=D1=80?=
 =?utf8?q?=D0=B0=D0=BD=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2/AI=20Tools=20Lab=20/S?=
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 <s.barannikov@samsung.com>
Date: Tue, 20 Aug 2019 03:33:55 +0900
Subject: [PATCH] [mir] Remove Dropout operation (#6675)

This is a no-op in inference mode.

Signed-off-by: Sergei Barannikov <s.barannikov@samsung.com>
---
 compiler/mir/include/mir/IrDotDumper.h   |  1 -
 compiler/mir/include/mir/OpDefs.h        |  1 -
 compiler/mir/include/mir/Operations.inc  |  1 -
 compiler/mir/include/mir/ops/DropoutOp.h | 53 --------------------------------
 compiler/mir/src/IrDotDumper.cpp         | 10 ------
 5 files changed, 66 deletions(-)
 delete mode 100644 compiler/mir/include/mir/ops/DropoutOp.h

diff --git a/compiler/mir/include/mir/IrDotDumper.h b/compiler/mir/include/mir/IrDotDumper.h
index c029981..3c44277 100644
--- a/compiler/mir/include/mir/IrDotDumper.h
+++ b/compiler/mir/include/mir/IrDotDumper.h
@@ -36,7 +36,6 @@ public:
   void visit(ops::Conv2DOp &op) override;
   void visit(ops::DeConv2DOp &op) override;
   void visit(ops::DepthwiseConv2DOp &op) override;
-  void visit(ops::DropoutOp &op) override;
   void visit(ops::EluOp &op) override;
   void visit(ops::FullyConnectedOp &op) override;
   void visit(ops::GatherOp &op) override;
diff --git a/compiler/mir/include/mir/OpDefs.h b/compiler/mir/include/mir/OpDefs.h
index 3040d24..7d73d50 100644
--- a/compiler/mir/include/mir/OpDefs.h
+++ b/compiler/mir/include/mir/OpDefs.h
@@ -26,7 +26,6 @@
 #include "mir/ops/Deconv2DOp.h"
 #include "mir/ops/DepthwiseConv2DOp.h"
 #include "mir/ops/DivOp.h"
-#include "mir/ops/DropoutOp.h"
 #include "mir/ops/EluOp.h"
 #include "mir/ops/FullyConnectedOp.h"
 #include "mir/ops/GatherOp.h"
diff --git a/compiler/mir/include/mir/Operations.inc b/compiler/mir/include/mir/Operations.inc
index 3a6b98e..e0acb21 100644
--- a/compiler/mir/include/mir/Operations.inc
+++ b/compiler/mir/include/mir/Operations.inc
@@ -26,7 +26,6 @@ HANDLE_OP(conv2D, Conv2DOp)
 HANDLE_OP(deConv2D, DeConv2DOp)
 HANDLE_OP(depthwiseConv, DepthwiseConv2DOp)
 HANDLE_OP(div, DivOp)
-HANDLE_OP(dropout, DropoutOp)
 HANDLE_OP(ELU, EluOp)
 HANDLE_OP(fullyConnected, FullyConnectedOp)
 HANDLE_OP(gather, GatherOp)
diff --git a/compiler/mir/include/mir/ops/DropoutOp.h b/compiler/mir/include/mir/ops/DropoutOp.h
deleted file mode 100644
index 4ebbe76..0000000
--- a/compiler/mir/include/mir/ops/DropoutOp.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _MIR_OPS_DROPOUT_OP_H_
-#define _MIR_OPS_DROPOUT_OP_H_
-
-#include "mir/Operation.h"
-
-namespace mir
-{
-namespace ops
-{
-
-class DropoutOp : public Operation
-{
-public:
-  DropoutOp(Output *arg, float rate) : Operation(Type::dropout, {arg}), _rate(rate)
-  {
-    // Infer output shape.
-    setOutputShape(0, getInputShape(0));
-  }
-
-  Operation *copyWithInputs(const std::vector<Output *> &inputs) override
-  {
-    return new DropoutOp(inputs[0], _rate);
-  }
-
-  /**
-   * @return The ratio of random dropout
-   */
-  float getRate() const { return _rate; }
-
-private:
-  float _rate;
-};
-
-} // namespace ops
-} // namespace mir
-
-#endif //_MIR_OPS_DROPOUT_OP_H_
diff --git a/compiler/mir/src/IrDotDumper.cpp b/compiler/mir/src/IrDotDumper.cpp
index df0220e..a683107 100644
--- a/compiler/mir/src/IrDotDumper.cpp
+++ b/compiler/mir/src/IrDotDumper.cpp
@@ -179,16 +179,6 @@ void IrDotDumper::visit(ops::SliceOp &op)
   _dot_builder.updateWithOp(&op, node_info);
 }
 
-void IrDotDumper::visit(ops::DropoutOp &op)
-{
-  auto nodeInfo = DotIrNodeInfo()
-                      .withType("DropoutOp", op.getName())
-                      .withInShapes(getInputShapes(op))
-                      .withOutShapes(getOutputShapes(op))
-                      .withMisc("DropRate", op.getRate());
-  _dot_builder.updateWithOp(&op, nodeInfo);
-}
-
 void IrDotDumper::visit(ops::DeConv2DOp &op)
 {
   auto node_info = DotIrNodeInfo()
-- 
2.7.4